Friday, February 02, 2007

More evoting problems in Florida in 2006

"The big e-voting story from November’s election was in Sarasota, Florida, where a congressional race was decided by about 400 votes, with 18,412 undervotes. That’s 18,412 voters who cast votes in other races but not, according to the official results, in that congressional race. Among voters who used the ES&S iVotronic machines — that is, non-absentee voters in Sarasota County — the undervote rate was about 14%. Something went very wrong...

Several explanations have been proposed, but only two are at all plausible: ballot design and machine malfunction. The ballot design theory says that the ballot offered to voters on the iVotronic’s screen was misdesigned in a way that caused many voters to miss that race. Looking at screenshots of the ballot, one can see how voters might miss the congressional race at the top of the second page...

It’s one thing to say that ballot design could have caused some undervotes, but it’s another thing entirely to say it was the sole cause of so elevated an undervote rate...

The malfunction theory postulates a problem or malfunction with the voting machines that caused votes not to be recorded. There are many types of problems that could have caused lost votes...

If we had a voter-verified paper trail, we could immediately tell which theory is correct, by comparing the paper and electronic records. If the voter-verified paper records show the same high undervote race, then the ballot design theory is right. If the paper and electronic records show significantly different undervote rates, then something is wrong with the machines. But of course the advocates of paperless voting argued that paper trails were unnecessary — while also arguing that touchscreen systems reduce undervotes."

Felten will be offering some more thoughts on the problem over the next week or so.